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2010 INTERNATIONAL CONFERENCE ON COMMUNICATION CONTROL AND COMPUTING TECHNOLOGIES最新文献

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Multicategory classification using an Extreme Learning Machine for microarray gene expression cancer diagnosis 微阵列基因表达癌症诊断的极端学习机多类别分类
Pub Date : 2010-12-17 DOI: 10.1109/ICCCCT.2010.5670741
S. Santhosh Baboo, S. Sasikala
This paper deals with the advanced and developed methodology know for cancer multi classification using an Extreme Learning Machine (ELM) for microarray gene expression cancer diagnosis, this used for directing multicategory classification problems in the cancer diagnosis area. ELM avoids problems like local minima; improper learning rate and over fitting commonly faced by iterative learning methods and completes the training very fast. We have evaluated the multicategory0 classification performance of ELM on benchmark microarray data sets for cancer diagnosis, namely, the Lymphoma data set. The results indicate that ELM produces comparable or better classification accuracies with reduced training time and implementation complexity compared to artificial neural networks methods like conventional back-propagation ANN, Linder's SANN, and Support Vector Machine.
本文讨论了利用极限学习机(ELM)进行微阵列基因表达癌症诊断的先进的癌症多分类方法,该方法用于指导癌症诊断领域的多分类问题。ELM避免了像局部最小值这样的问题;迭代学习方法普遍面临学习率不合理和过拟合等问题,训练完成速度非常快。我们已经评估了ELM在用于癌症诊断的基准微阵列数据集(即淋巴瘤数据集)上的多类别分类性能。结果表明,与传统的反向传播ANN、Linder’s SANN和支持向量机等人工神经网络方法相比,ELM在减少训练时间和实现复杂性的同时,产生了相当或更好的分类精度。
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引用次数: 25
Inner race bearing fault detection using Singular Spectrum Analysis 基于奇异谱分析的内滚道轴承故障检测
Pub Date : 2010-12-17 DOI: 10.1109/ICCCCT.2010.5670774
B. Muruganatham, M. Sanjith, B. Krishna Kumar, S. S. Satya Murty, P. Swaminathan
A novel method to diagnose the bearing fault is presented. The proposed method is based on the analysis of the bearing vibration signals using Singular Spectrum Analysis (SSA). SSA is a non-parametric technique of time series analysis that decomposes the acquired bearing vibration signals into an additive set of time series to extract information correlated with the condition of the bearing. Information in terms of time-domain features extracted from the SSA processed signal has been presented to a neural network for determination of inner race bearing fault. The result shows the effectiveness of the proposed method.
提出了一种新的轴承故障诊断方法。该方法基于奇异谱分析(SSA)对轴承振动信号的分析。SSA是一种非参数时间序列分析技术,它将采集到的轴承振动信号分解成一个可加性时间序列集,提取与轴承状态相关的信息。从SSA处理后的信号中提取时域特征信息,并将其传递给神经网络,用于内套圈轴承故障的诊断。实验结果表明了该方法的有效性。
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引用次数: 10
Inverted U-shaped Dielectric resonator antenna for WLAN 无线局域网用倒u型介质谐振器天线
Pub Date : 2010-12-17 DOI: 10.1109/ICCCCT.2010.5670788
Mahender P, N. S, S. Behera
A Dielectric resonator antenna design is presented for Wireless Local Area Network (WLAN) applications. By using a dielectric resonator with an inverted U-shape cross section and optimized rectangular patch adhered in between the dielectric resonator as a feeding mechanism, an impedance bandwidth of about 15.7% and covering a frequency range of 5.1 to 5.97 GHz is achieved and resonating at 5.5GHz. The proposed antenna is suitable for wireless local area networks (WLAN) applications in 5–6 GHz frequency range. This U Shaped DRA exceeds the bandwidth requirements for the IEEE 802.11a wireless local area network (WLAN) applications (5.15–5.35 GHz and 5.725–5.825 GHz) within a 2∶1 VSWR. Parametric studies of the antennas with CST microwave based design data and simulated results are presented here.
提出了一种适用于无线局域网(WLAN)的介质谐振器天线设计方案。采用倒u型截面的介质谐振器,并在介质谐振器之间粘贴优化的矩形贴片作为馈电机构,实现了约15.7%的阻抗带宽,覆盖5.1 ~ 5.97 GHz的频率范围,谐振频率为5.5GHz。该天线适用于5 ~ 6ghz频率范围的无线局域网应用。这款U形DRA在2∶1 VSWR范围内超过了IEEE 802.11a无线局域网(WLAN)应用(5.15-5.35 GHz和5.725-5.825 GHz)的带宽要求。本文给出了基于CST微波的天线参数化研究和仿真结果。
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引用次数: 8
Software defect detection and process improvement using personal software process data 使用个人软件过程数据进行软件缺陷检测和过程改进
Pub Date : 2010-12-17 DOI: 10.1109/ICCCCT.2010.5670734
M. Gopichand, V. Swetha, A. Ananda Rao
Statistical evidence has shown that programmers perform better when following a defined, repeatable process such as the Personal Software Process (PSP).Anecdotal and qualitative evidence from industry indicates that two programmers working side-by-side at one computer, collaborating on the same design, algorithm, code, or test, perform substantially better than the two working alone i.e. pair programming. Bringing these two ideas together, a new Software Process has been formulated. The Hybrid Personal Software Process (HPSP) is a defined, repeatable process for two programmers working collaboratively. The development time and cost of the product are reduced in HPSP when compared with PSP programming.
统计证据表明,程序员在遵循定义的、可重复的过程(如个人软件过程)时表现更好。来自行业的轶事和定性证据表明,两个程序员在一台计算机上并肩工作,在相同的设计、算法、代码或测试上合作,比两个单独工作的人表现得更好,即结对编程。将这两个想法结合在一起,就形成了一个新的软件过程。混合个人软件过程(HPSP)是为两个程序员协作工作而定义的、可重复的过程。与PSP编程相比,HPSP的开发时间和成本都大大降低。
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引用次数: 3
Equalization of digital communication channels based on PSO algorithm 基于粒子群算法的数字通信信道均衡
Pub Date : 2010-12-17 DOI: 10.1109/ICCCCT.2010.5670744
Sandhya Yogi, Prof. K. R. Subhashini, Prof. J. K. Satapathy, Shiv Kumar
One of the main obstacles to reliable communications is the inter symbol interference. An adaptive equalizer is required at the receiver to mitigate the effects of non-ideal channel characteristics and to obtain reliable data transmission. The conventional way to combat with ISI is to include an equalizer in the receiver. This paper presents a new approach to equalization of communication channels using Functional Link Artificial Neural Networks (FLANNs). A novel method of training the FLANNs using PSO Algorithm is described. The performance of the proposed network has been compared with the conventional LMS based channel equalizer and FLANN trained with BP algorithm based equalizer. From the results it can be noted that the proposed algorithm improves the classification capability of the FLANNs in differentiating the received data.
码间干扰是实现可靠通信的主要障碍之一。在接收端需要一个自适应均衡器,以减轻非理想信道特性的影响,并获得可靠的数据传输。对付ISI的传统方法是在接收机中加入一个均衡器。本文提出了一种利用功能链路人工神经网络(flann)实现通信信道均衡的新方法。提出了一种利用粒子群算法训练flann的新方法。将该网络的性能与传统的基于LMS的信道均衡器和基于BP算法的均衡器训练的FLANN进行了比较。从结果可以看出,该算法提高了flann对接收数据的分类能力。
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引用次数: 13
PAPR reduction for improving performance of OFDM system 降低PAPR以提高OFDM系统的性能
Pub Date : 2010-12-17 DOI: 10.1109/ICCCCT.2010.5670530
C. Vennila Arasu, Puneet Hyanki, H. Lakshman Sharma, G. Lakshminarayanan, M. Lee, S. Ko
Orthogonal frequency division multiplexing (OFDM) signals have a generic problem of high peak to average power ratio (PAPR) which is defined as the ratio of the peak power to the average power of the OFDM signal. The drawback of the high PAPR is that the dynamic range of the power amplifiers (PA) & digital-to-analog (D/A) converters required during the transmission and reception of the signal is higher. As a result, the total cost of the transceiver increases, with reduced efficiency. This paper includes an idea of the PAPR constraint, along with the implementation and analysis of some specific algorithms for PAPR reduction of the OFDM signals. All the PAPR reduction algorithms are implemented and tested in the OFDM transceiver designed using Matlab. Analyzing some specific algorithms, we propose a novel algorithm by combining the subcarrier phase adjustment and linear combination of the time domain OFDM signals. Simulation results for a OFDM system employing Quadrature Amplitude Shift Keying (QASK) symbols and Quadrature Amplitude Modulation (QAM) can achieve a PAPR reduction of 5 dB.
正交频分复用(OFDM)信号普遍存在峰值平均功率比(PAPR)高的问题,PAPR是指OFDM信号的峰值功率与平均功率之比。高PAPR的缺点是在信号发送和接收过程中所需的功率放大器(PA)和数模转换器(D/A)的动态范围更高。因此,收发器的总成本增加,效率降低。本文介绍了PAPR约束的基本思想,并对OFDM信号的PAPR降低算法进行了具体的实现和分析。在用Matlab设计的OFDM收发器中,对所有的PAPR降低算法进行了实现和测试。在分析了一些具体算法的基础上,提出了一种将子载波相位调整与时域OFDM信号的线性组合相结合的新算法。仿真结果表明,采用正交移幅键控(QASK)符号和正交调幅(QAM)的OFDM系统可以实现5 dB的PAPR降低。
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引用次数: 12
Web based decision support system for management of defence activities: Process Automation in Strategic Command - Decision Support System (PASC-DSS) 基于网络的防务活动管理决策支持系统:战略指挥过程自动化决策支持系统
Pub Date : 2010-12-17 DOI: 10.1109/ICCCCT.2010.5670743
Suman Patil, Lalita Madanbhavi
“Process Automation in Strategic Command - Decision Support System” (PASC - DSS) is a program being executed by Center for Artificial Intelligence and Robotics (CAIR) to provide Indian Defence with a system built on leading edge technology. PASC - DSS helps in collecting, collating, filtering, processing, synthesizing and displaying the information gathered from various sources and provide support while decision making. The system also helps to provide support for gathering information for various resources of Indian Defence and utilizing this information at the time of executing various operations. This paper first gives the insight into decision support systems. Then we present the system.
“战略指挥过程自动化-决策支持系统”(PASC - DSS)是由人工智能和机器人中心(CAIR)执行的一个项目,旨在为印度国防提供建立在前沿技术基础上的系统。PASC - DSS有助于收集、整理、过滤、处理、综合和显示从各种来源收集的信息,并在决策时提供支持。该系统还有助于为印度国防部的各种资源收集信息提供支持,并在执行各种行动时利用这些信息。本文首先对决策支持系统进行了深入的研究。然后介绍系统。
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引用次数: 2
Simulation of closed loop controlled current source inverter fed ferromagnetic load 闭环控制电流源逆变器馈电铁磁负载的仿真
Pub Date : 2010-12-17 DOI: 10.1109/ICCCCT.2010.5670722
A. Suresh, S. Rama Reddy
Modelling and simulation of closed loop controlled class D current source resonant inverter (CSRI) for ferromagnetic load is presented in this paper. The converter can operate effectively even for fluctuating source and it operates in zero-current switching mode. The switching devices are connected through a common ground and need only a single DC power supply for the gate driver circuitry. The aim of this work is to develop an induction heater system with minimum hardware. The simulink model of closed loop system is presented. The results of simulation are also presented.
本文对铁磁负载下闭环控制的D类电流源谐振逆变器进行了建模与仿真。该变换器工作在零电流开关模式下,即使在波动源下也能有效地工作。开关设备通过一个公共地连接,只需要一个直流电源为栅极驱动电路供电。本工作的目的是开发一种硬件最少的感应加热系统。给出了闭环系统的simulink模型。最后给出了仿真结果。
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引用次数: 0
System performance analysis of MIMO channel capacity with channel state approaches 基于信道状态法的MIMO信道容量系统性能分析
Pub Date : 2010-12-17 DOI: 10.1109/ICCCCT.2010.5670529
S. A. Joshi, T. Rukmini, H. Mahesh
Multiple Input Multiple Output (MIMO) is a radio communication technology or RF technology that is being mentioned and used in many new technologies these days. The capacity of such a system depends on transmit and receive antenna strategies. The MIMO capacity scales roughly and linearly with the number of Transmitter and Receiver antennas. The two core approaches have been adopted to study the system performance are namely SVD and correlation matrix approach. These methods indicate that the capacity gain obtained from multiple antennas, heavily depends on the amount of channel knowledge at either the receiver or transmitter, the channel SNR, and the correlation between the channel gains on each antenna element. The proposed work explores numerical results of capacity with power allocation in Gaussian, Raleigh fading channels. Simulation of various different transmit and receive antenna strategies like, Independent Rayleigh fading channels in CSI / CDI mode, transmit and receive strategies in Additive White Gaussian Noise (AWGN) environment.
多输入多输出(MIMO)是一种无线电通信技术或RF技术,近年来在许多新技术中被提及和使用。这种系统的容量取决于发射和接收天线的策略。MIMO容量与发射天线和接收天线的数量大致呈线性关系。研究系统性能的两种核心方法是奇异值分解法和相关矩阵法。这些方法表明,从多个天线获得的容量增益在很大程度上取决于接收机或发射机的信道知识量、信道信噪比以及每个天线单元上信道增益之间的相关性。本文研究了高斯、罗利衰落信道中容量随功率分配的数值结果。仿真各种不同的发射和接收天线策略,如CSI / CDI模式下的独立瑞利衰落信道,加性高斯白噪声(AWGN)环境下的发射和接收策略。
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引用次数: 1
An adaptive noise cancellation scheme using particle swarm optimization algorithm 基于粒子群优化算法的自适应噪声消除方案
Pub Date : 2010-12-17 DOI: 10.1109/ICCCCT.2010.5670753
U. Mahbub, C. Shahnaz, S. Fattah
This paper deals with the problem of noise cancellation of speech signals in an acoustic environment. In this regard, generally, different adaptive filter algorithms are employed, many of them may lack the flexibility of controlling the convergence rate, range of variation of filter coefficients, and consistency in error within tolerance limit. In order to achieve these desirable attributes as well as to cancel noise effectively, unlike conventional approaches, we formulate the task of noise cancellation as a coefficient optimization problem whereby we introduce and exploit the particle swarm optimization (PSO) algorithm. In this problem, the PSO is designed to perform the error minimization in frequency domain. The outcomes from extensive experimentations show that the proposed PSO based acoustic noise cancellation method provides high performance in terms of SNR improvements with a satisfactory convergence rate in comparison to that obtained by some of the state-of-the-art methods.
本文研究了声环境下语音信号的消噪问题。在这方面,通常采用不同的自适应滤波算法,其中许多算法可能缺乏控制收敛速度的灵活性、滤波系数的变化范围以及误差在容差范围内的一致性。为了实现这些理想的属性以及有效地消除噪声,与传统方法不同,我们将噪声消除任务制定为系数优化问题,并引入和利用粒子群优化(PSO)算法。在这个问题中,粒子群算法被设计用于在频域上实现误差最小化。大量的实验结果表明,与一些最先进的方法相比,所提出的基于粒子群的噪声消除方法在信噪比提高方面具有很高的性能,并且具有令人满意的收敛速度。
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引用次数: 18
期刊
2010 INTERNATIONAL CONFERENCE ON COMMUNICATION CONTROL AND COMPUTING TECHNOLOGIES
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